Thank you for your viewpoint, as someone more familiar with Scandanavia than me. There is a comment on one of the profiles from someone else familiar with Scandanavia who agrees with you.
I sent a private message Aksel Horvei, because he is both pre-1500 certified and obviously knows a lot more about the the area and time period than me. Perhaps he will adopt Skanke-5 and Schanke-7, merge them, change Kerstin/Christine's LNAB to Jensdatter, then adopt Rytter-1 and Rytter-4 and merge them. He can always orphan them afterwards.
The huge number of pre-1500 profiles that have pending merges going back years is very frustrating to me.